Ultrasonic sensor unit
The ultrasonic sensor unit addresses the challenge of high accuracy and efficiency in vehicle sensors by employing digital filtering and beam steering, achieving precise signal evaluation and beam control with improved resolution and cost-effectiveness.
Patent Information
- Application Number
- DE102024210495
- Authority / Receiving Office
- DE · DE
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2026-04-30
AI Technical Summary
Existing ultrasonic sensors in vehicles face challenges in achieving high accuracy and efficiency while maintaining low cost and weight, due to increasing performance and quality demands and weight reduction requirements in the automotive sector.
The ultrasonic sensor unit employs digital filtering and beam steering techniques, utilizing a logic unit and ultrasonic array to process ultrasonic waves, including downsampling, channel-specific filters, and adjustable signal delays to enhance signal evaluation and beam control, allowing for precise beam steering and improved signal placement in spatial context.
This approach significantly improves the accuracy and resolution of ultrasonic signal evaluation, enabling angular resolutions of less than 1° and simultaneous generation of multiple beams for various reception directions, while maintaining a low phase shift and constant group delay, thus enhancing the sensor's performance and cost-effectiveness.